Sharpener



Patented May 3, 1949 UNITED STATES PATENT OFFICE SHARPENER JacobBrockley, Newport News, Va. Application January 23, 1947, Serial No.723,837

1 Claim.

This invention relates to Sharpeners, and more particularly to acombined knife, scissors and razor blade Sharpener.

It is an object of this invention to provide an improved Sharpener ofthe kind to be more specically described hereinafter which is convenientand inexpensive, simple in construction and operation, to facilitate thesharpening of knives, scissors and razor blades to fill a need of such adevice in homes and many business establishments.

Another object of this invention is t-o provide a tool of this kindhaving an abrasive wheel for sharpening scissors and razor blades androllers for sharpening knives. A supporting plate is provided in whichthe scissors may be firmly held while being sharpened so that the propercutting angle will be provided.

A further object of this invention is to provide a sharpening tool ofthis kind having an abrasive wheel and sharpening rollers supported on aclamp which may be readily set up on the edge of a table or bench whendesired and just as readily removed when the tool is not being used. Theabrasive wheel and rollers are rotatably mounted on the clamp in such amanner that they are held against rotation during the sharpeningoperations but may be rotated by the user when desired to provide forthe equal wear on the abrasive surfaces and edges.

With the above and other objects in view, my invention consists in thearrangement, combination and details of construction disclosed in thedrawings and specification, and then more particularly pointed out inthe appended claim.

In the drawing,

Figure 1 is a side elevation of a tool Sharpener constructed accordingto an embodiment of this invention,

Figure 2 is a front elevation thereof,

Figure 3 is a rear elevation,

Figure 4 is a top plan view partly broken away.

Referring to the drawing, the numeral I designates generally a Sharpenerfor scissors, razor blades and knives, which is readily portable and maybe attached to the top of a table or bench Il when in use, and which maybe readily stored when desired.

The Sharpener I0 comprises a combination of an abrasive wheel I2 forsharpening scissors and razor blades, and a pair of rollers I4 forsharpening knives or similar cutting instruments. The Sharpener I0comprises a base I5 formed of a flat strip of metal which is adapted tooverlie the top surface of a table II, forming an upper clamping jaw forthe device. An L-shaped 2 clamping member I6 is fixed to the base I5,extending downwardly therefrom, the lower horizontal arm I1 of theclamping member I6 being provided with a threaded bore I8 through whichthe screw I9 engages for clamping the Sharpener I0 to the table.

The base I5 is formed with a vertically extending ange 20 on one sidethereof for supporting the abrasive Wheel I2. The wheel I2 is providedfor sharpening the scissors or razor blades and is preferably made ofabrasive material such as silicon-carbide or aluminum oxide forsharpening scissors and oil stone for sharpening razor blades. A headedbolt 2| engages through the upper end of the flange 20 and through theWheel I2 for rotatably supporting the wheel thereon. The bolt 2I isreduced at its inner threaded end as at 22 inwardly of the wheel I2. Thehead 2L. of the bolt is adapted to engage the outer side of the flange2i] and a resilient spider 25 engages about the reduced end 22 of thebolt for frictionally holding the wheel I 2 against rotation.

The spider 25 is formed of a washer 2B which is adapted to abut theshoulder 21 formed by the reduced end 22 extending from the bolt 2I andhaving inwardly extending fingers 28 which press against the side ofthewheel I2. 'I'he nut 29 may be securely tightened down on the spider 25which will lock the spider to the wheel and to the screw 2I whilepermitting the wheel to be rotated by the user and holding it againstrotation while the wheel is being used to sharpen a tool.

For supporting the blade of a scissors to be sharpened on the wheel I2,there is provided a Z-shaped supporting member 30 having a lower flange3l which is adapted to be xed to the base I5 by rivets 32 or othersuitable fastening devices and an upper flange 34 which serves as aplatform on which the scissors blade 35 may be rested while the edge isbeing sharpened. The platform 34 or upper flange of the support 30 isdisposed above the base I5 and below a plane parallel to the basethrough the axis of the wheel I2. The Z-shaped supporting member may bemade or formed integrally with the base I5, so a separate part will notbe necessary.

The tool supporting member 30 is located approximately from thehorizontal plane through the axis of the wheel to provide for the propercutting edge on the blade 35. A vertically extending ange 36 is formedon the base I5 on a side thereof, at right angles to the flange 20. Theclamping member I6 is provided with ears 31 which are adapted to befastened to the 3 ange 36 by rivets 38 or other suitable fasten ingdevices. The flange 36 is further formed with a pair of transversespaced apart upwardly extending arms 39 von which the rollers I4 arerotatably supported.

The rollers I4 are provided for sharpening the edge of a knife 40 andengage each other along the periphery thereof at a point substantiallyin the plane of the axis of the rollers. The rollers I4 are rotatablymounted onithe 'bolt Il, extending through the vnger 39 and the axis ofthe rollers I4, having a spider 42 on the inner reduced end of the bolt4|. The bolts 4I are constructed in the same manner as the bolt 521described above, and the spiders 42 are similar to the spider 25described above, so thatthedescription of the spider 25 and bolt 2i willapply to the spider 42 and bolt 4|.

The discs I4 are made of tool steel, hardened and ground on thecircumference to provide a suitable cutting medium for sharpening `theknives. For sharpening scissors, the abrasive wheel I2 is used. The.ilatside of thescissors blade is rested on the support ,30 in front of`the wheel. The cutting edgeof the scissors -is held against the face ofthe wheel with a .light pressure and the blade is moved vfrom end to'end against fthe wheel until a smooth, sharp cutting edge is developed.

Razor blades are sharpened on top fot the wheel and a support is notnecessary.

For sharpening knives, the steel rollers :are used. the cutting edgesfof lthe knives are placed in cutting'contact with'the cutting edgevformed by the rollers I4. With :a light pressure the knife `is moved`vfrom end to end over fthe :rollers until a suitable cutting edge-.isformed. The spiders 25 and 42 hold the wheel Hand rollers VIII iagainstrotation while the Iblade of ka toolis being sharpened and may berotated by the -nser to :permit an even wear 1on'the surface of the 4wheel and rollers when the from the Sharpener.

I do not mean to confine myself to the exact details of constructionherein disclosed, but claim all variations falling within the purview ofthe appended claim.

What I claim is:

A sharpening device comprising a base, an L-shaped clamping memberonsaid base extending downwardly therefrom for clamping said lbase on asupport, a vertically extending ange Von said base, upwardly extendingarms on said ilange, a pair of peripherally engaging sharpeningrollerson said arms, headed bolts engaging through. said r.arms and saidrollers adjustably 'mounting said rollers on said arms, a reduced.diameter threaded'end on said bolts defining a shoulder adjacent saidend, a spring spider on saidthreaded end engaging said rollers and saidshoulder for frictionally holding said rollers against rotation, and anuton vsaid `bolts for adjusting vthe tension "of said spider.

JACOB BROCKLEY.

REFERENCES CITED 'The Afollowing references are of vrecord in the le oivthis patent: 4

UNITED STATES PATENTS :FOREIGN PATENTS Country Date Switzerland Dec."21, 1910 yGreat Britain May', 1924 tools are removed 430 Number Number

